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Home > News > A553 Type II steel plate

A553 Type II steel plate

A553 Type II in the standard A553/A553M is a kind of Ni alloy steel plates material,the composition of Ni is 8% and 9%. A553 have two types.They are : type I and type II.A553 Type II need to be done the (Quenching + Tempering ) heat-treatment to meet the property requirement in the standard ASTM A553/A553M.

A553 Type II in the standard A553/A553M is used to fabric high temperature pressure vessels

Standard: ASTM A553/A553M

Dimension range : 3mm -260mm * 1000mm-4000mm * 1000mm-18000mm

A553 Type II steel plate/sheet Chemical composition (%):

Grade	C	Mn	S	P	Si	Ni
A553 Type II	0.13	0.90-0.98	0.035	0.035	0.15~0.40	7.50~8.50

A553 Type II Boiler steel plate Mechanical Properties :

Grade	Tensile Strength ksi (Mpa)	Yield Strength ksi (Mpa)	Elongation in 2 in , 50 mm,min,(%)
A553 Type II	100-120 (690-825)	85 (585)	20

Delivery Status : Normalizing + tempering

ASTM A553 Type II Q&T steel plate application :
A553 Type II steel plate is mainly used in oil, chemical, power station, boiler and other industries, for the production reactor, heat exchangers, separators, spherical tanks, oil and gas pipes, liquefied gas tanks, nuclear reactor pressure shell, boiler drum, liquefied petroleum Gas cylinders, high-pressure water pipes, water turbines and other equipment and components.

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